Regional Geology of the Browse Basin

The Browse Basin is one of a series of extensional basins that form the Westralian Superbasin comprising also the Bonaparte, Roebuck, Offshore Canning and Northern Carnarvon basins, collectively known as basins of the North West Shelf (Figure 1). The basin continues to be a premier exploration target and four hydrocarbon families/petroleum systems have been identified. In 2018, two main hydrocarbon accumulations, Ichthys and Prelude, commenced production of liquefied natural gas (LNG) and condensate. Overall, petroleum resources are estimated at 33 MMbbl (5.2 GL) of crude oil, 1214 MMbbl (193 GL) of condensate, 404 MMbbl (64 GL) of LPG and 41.3 Tcf (1169 Bcm) of gas (Geoscience Australia, 2018).

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For information on the 2021 acreage release areas in the Browse Basin visit the Department of Industry, Science, Energy and Resources website.